Saw-filer



A. STEWART.

SAW FILER.

APPLICATION FILED MAR. 31.1919.

1 ,3 1 4, 9 1 2 Patented Sept. 2, 1919.

2 SHEETS-SHEET I.

- [7a zemZvr:

7 A J'zawarii A. STEWART.

SAW FILER. APPLICATION FILED MAR. 31. 919.

1 ,3 1 4, 9 1 2 I Patented Sept. 2, 1919.

2 SHEETSSHEET 2.

I UNITED STATES PATENT OFFICE.

ADAM STEWART, 0F LOS ANGEIQES, CALIFORNIA.

SAW-FILER.

To all whom it may concern:

Be it known that I, ADAM S'.1EWART, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in S aw-F1lers, ofwhich the following is a specification.

- My invention relates to saw filers and consists of the novel featuresherein shown, described and claimed.

Figure 1 is a perspectlve of a saw filer embodying the principles of mynvention.

. Fig. 2 is an end elevation as seen looking in the direction indicatedby the arrow 2 1n Fig. 1.'

Fig. 3 is a vertical cross section on the l1 ne 3-3 of Fig.1 and on aplane parallel with Fi 2. i

ziig. 4 is a fragmentary sectional detail .on the lines 44 of Figs. 1, 2and 3.

The work bench 1 may beany suitable construction having a flat top 2and; a straight vertical front edge 3. llhe spacing plate 4 has a flatcentral portion 5, supporting portions 6 and 7 extending downwardly fromthe ends of the centralportlon 5, attaching plates 8 and 9 extendingforwardly from the lower edges of the portions 6 and 7 and resting uponthe bench top 2, a stiffening flange 10 extending upwardly from theforward edge of the portion 5, and a stiffening flange 11 extendingdownwardly from the rear edge of the portion 5.

The attaching bars 12 and 13 are placed across the tops of the attachingplates 8 and 9 and secured in place by bolts 14 and 15. The forward endsof the bars 12 and 13 have portions 16 and 17 bent downwardly at rightangles to fit against the front edge 3, and prongs'18 and 19 to driveinto the bench 1, and the rear ends of the bars have prongs 20 and Y21to drive into the work bench 1. In applying the saw filer to a benc'htheplates 8 and 9 are placed upon the upper face 2 of the bench and movedbackwardly and the prongs 18 and 19 driven into the front face 3 andthen the prongs 20 and 21 driven downwardly.

A saw clamping plate 22 is placed upwardly against the portion 5 and hasa downwardly extending flange 23 at its for- Ward edge in line with theflange 10, and the plate 22 is secured to the portion 5 by screws 24.The bracket plates 25 and 26 fit against the supporting portions 6 and 7Specification of Letters Patent.

Application filed March 81, 1919.

Patented Sept. 2, 1919.

Serial No. 286,426.

and are secured in place'by bolts'27 and 28., A clamping bolt 29 isinserted through the bracket plate 25, through the supporting portion 6,under the portion 5, through the portion 7, and through the bracketplate 26, and a wing nut 30 is placed upon the end of the clamping boltoutside of the plate The saw clamping brackets 31 and 32 extend upwardlyand forwardly from the bracket plates 25and 26 and have notches 33 and34 extending upwardly from their lower ed es, said notches being in aplane justin front of the edges 10 and 23. A round clamping bar 35 hasconcentric pintles 36 and 37 extending through the brackets 31 and32 soas to mount the clamping bar 35 parallel with the flanges 10 and 23. Apin is inserted through the center of the clamping bar 35 and extendsdownwardly to form a handle 38, so that when a saw blade 39 is insertedupwardly into the notches 33 and 34 against the front faces of theflanges 10 and 23 with the handle 38 pulled for- -wardly and upwardlyand the handle depressed, the saw blade is firmly clamped with the sawteeth extending above the upper edgle of the flange 10 and paralleltherewit A back bar 40 is formed of stifl strap iron and the ends of thestrap iron are bent at right angles to form the back bar supporting arms41 and 42. The clamping bolt 29 is inserted through the forward end ofthe arm 41 before the bolt passes through the bracket plate 25, and thebolt is inserted through the forward end of the arm 42 after the boltpasses through the bracket 26 and before the nut 30 is applied. Radialgraduations 43 are formed upon the outer faces'of the'bracket plates 25and 26 to assist in adjusting the arms 41 and 42 to the desired level orangle, and to correspond with each other, that is to the same level orangle. The nut 30 is loosened and the back bar 40 raised or lowered tobring the arms 41 and 42 to the desired graduations and then the nut 30tightened enough to hold the back bar in its adjusted position.

A channel guideway 44 is fixed against the back side of the back bar 40by rivets 45 with the channel 46 opening upwardly. The guide block 47fits in the channel 46 and has a rounded lower face 48 extending one wayfrom the longitudinal center and fitting upon the straight upper face ofthe bottom 49 of byrivets 52, said plate having slots 53 and 54 throughone end, so that whenthe block Copies of thls' patent nlay be obtained.for

in the channel 46. A plate 51 is mounted on top of the block 47 andsecured in place '47 is tilted the edges 55 and 56 of the channelguideway will the slots 53 and 54; I The file holder bearing 57 is -achannel bar fitting uponthe' plate 51 and secured in. place; byhaspivotscrew' '58 inserted'down wardlyithrough' the bottom of the channel 'barandi tapped into the block 47 at the V center of theplate 5 1".-Graduations 59 are formed upongthe: upper face of the" plate 51' foruse in connection with thebearing 57 to proper-1 y I locate the parts toget the proper anglefor"reciprocating the file, and when thei par ,7 V

58 istightened to hold the hearing 57 =hefloosened, the fileinsertedfand the screws 7 tightened to'rig-idly grip the file and makeahandle for-the rear end of thefile, said handle traveling in thechannel of the bearing .57 t

I Itis usual Fig. 3, and at a transverse incline, as shown iniJFig.--1-. Bh'e direction of the-transverse 'inclin'e 'is uniform forfiling one side of the teeth, and them the direction of inclinationis'revers'eds-for filing the other side, of the teeth; For the purposeof reversing the direction ofin'clination the plate 51 carryingtheblocl'z'47' may be lifted out of the channel 46 and: turned. halfaround, and for thispurpose the grad-nations 59 serve for adj'usting"'0ne"an gle,an'd the graduations 59' serve for Jname to thisspecification. 7 r f a a STElVARTI adjustingithe other angle; :Variouschanges 7 may pass upwardlyintorei adj u'sted the pivot: s'crewi 7rigidly upon the plate'51a -T-he file clamp; comprisesupper-bar 60 and alowerba-r: 6-1 fitting the bearing- 57and adapted to receive and gripthe point of a saW -file 62,5 said bars 60* and 61 b eingconnected byscrews 63 64, so that the screws may the bearing.

V in filing saws for the-'fi1e62to travel at/an upward incline, as-shownin be. made withoutfj s artihg fr h spiri 'Qf i is as claimed. 3

I claim:

'1. A saw filer comprisinga frame adapted 7 V Z tobe rigidly mountedupon a bench, means for vclampingfa saw in the fran1e,"a' back bar,armsextending from the ends of the}. back bar "and pivotally connectedto; the q frame, means for adjusting and V clamping" the arms to' theframe, a channel bar secured to the back bar,ya" block slidinglymmounted 'inthe channel bar,v abearingead justably f securedtothehlock,anda-file V; cclamp-slidingly mounted in 'the bearingi 2; A saw filercomprising a frame means for clamping a saW"in'tl1'e frame-,5a channel 7I: bar adjfi-stably mounted; relative" 'to-flthe frame; a blockslidingly mounted in the channel bar, a bearing adjusta'bly mounted:upon theblock, and a file clamp slidingly: 'rnoiult'e'din-the hearing.

' saw. filer comprisinga frame, means fonclamp-ing a saw in the frame,:a channel; 7 bar adjustably mounted "relative toa'the -l j 1 frame, a'block slidingly mounted in the f75r channel bar, a bearing adjustahlymounted 1 y upon tl i'e'block, andfa file clampslidingly i'f. f"

mounted in the bearing, there'heing a grad uated plate fixed tothe blockfor forclamping a saw in 'the'f'r ame, a'channel baradjustably mountedrelativeto tl'1es frame,- a block slidingly" mountedi n the channel bar,means for tilt'i'ngthej hlock endwisein the channel, abearing adjustably3 mounted upon thebl'ock, and a] file'clamp slidingly mounted in thebearing 5.- A saw filer comprising a frame, means for'clamplng a saw 111the frame, channel bar adjusta'hly mounted; relative to the mounted inthe bearing; 7 In: testimony whereof I av ned I fivece'n-ts alby'iaddressing the commits-acne:- o r ra'cnts,f Washington, 1).: G. i Y'c

